Anchor-bolt support



F. A. KEITH.

ANCHOR BOLT SUPPORT.

APPLICATION 51m) ran. 25. 1918.

1 ,3-2.3,067 r Patnted Nov. 1919.

marten steers earns sit FLOSS A. KEITH, OF SGHENEGTADY, NEW YORK.

ANCHOR-BOLT SUPPORT.

To all whom it may concern: Be it known that I, F Loss A. KEI H, a subject of Great Britain, residing at Schenectady, county of Schenectady, and State of New York, have invented certain new and useful Improvements in Anchor- Bol-i; Supports, of which the following is a specification.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification. Similar characters refer to similar parts in the several figures therein.

The principal object of the invention is to properly support an anchor-bolt within a concrete-form during the operation of pouring and packing the concrete mixture into the form, and around the inner end of the anchor-bolt.

In the manufacture of concrete bases or foundations for metal columns it is customary to embed in the concrete mixture one end of a bolt called an anchor-bolt, the other end of which projects sufliciently to adapt it for connection with the metal column. It

form, adapted to engage and laterally support the shank of the anchor-bolt whereby, without further attention, the anchor-bolt is held at the proper angle with respect to the templet while the concrete mixture is poured and packed into the form and around the inner end of the anchor-bolt.

Other objects will appear in connection with the following description.

Figure 1 of the drawings is a bottom plan view of a concrete-form having a templet upon which is mounted an anchor-bolt-support embodying my invention.

Fig. 2 is a central vertical section taken longitudinally of the templet with the form upright.

Fig. 3 is a similar sectional View showing the concrete block and anchor-bolt with the form removed.

Fig. 4c is a view in perspective of the anchor-bolt-support detached,

Specification of Letters Patent.

PatentedNov. 25, 1919.

Application filed February 25, 1918. Serial No. 218,974.

Referring to the drawings wherein the invention is shown in preferred form, I have shown a concrete-form comprising a foursided box-like structure, 1, having a templet, 2, extending across the top of the form, the templet being provided with the usual aperture, 3, to receive the outer end of an anchor-bolt, 4:, the inner headed end, 5, of which is to be embedded in a concrete base or block, 6, with the outer end of the anchor-bolt projecting from the templetformed top surface, 7, of said base or block.

My novel anchor-bolt-support is preferably made of sheet-metal in the form of a truncated cone, 8, having on its larger end offset ears, 9, whereby it can be readily attached to the underside of the templet, 2, by nails or the like driven through said ears.

The smaller end of this conical support is adapted to fit the shank of the anchorbolt, 4. This conical support, 8, may be made of any desired length, adapting its smaller end to engage the shank of the anchor-bolt at a sufiicient distance below the templet, E2, to afford the proper lateral support to the anchor-bolt.

One or more slits, 10, maybe formed in the smaller end of the conical support, 8, whereby said end is rendered more or less expansible to adapt 'it to fit the shanks of anchor-bolts of different diameters.

The support, 8, is mounted upon the underside of the templet, 2, opposite the anchor-bolt-aperture, 3, therein, as shown in Figs. 1 and 2.

The anchor-bolt is then inserted upwardly through the support, 8, and aperture, 8, in the templet; and a nut, 11, or-other retaining device is applied to the outer projecting end, of the anchor-bolt, supporting the head, 5, of the bolt at the proper distance below the templet.

The templet is then placed across the top of the box, 1, with the anchor-bolt and its support depending therewithin as shown in Fig. 2.v The concrete mixture is then poured into the form and. packed therewithin around the anchor-bolt and its support until the form is filled in the usual manner.

'VVhen the concrete has set, the form is removed, leaving the anchor-bolt embedded in the concrete base or block, 6, as shown in Fig. 3.

The anchor-bolt-support, 8, may be removed with the templet, 2, or it may be left in the molded block or base, as desired.

By the use of my anchor-bolt-support, the

shank of the anchor-bolt is laterally supported during the pouring and packing "of "the concrete mixture into the mold and around the anchor-bolt, so that 1t Wlll project quite accurately at the desired angle with respect to the templet-formed surface of the concrete block or'ba'sc, 6. V a

I have shown the anchor-bolt-support of a form adapted to support the anchorbolt perpendicularly to the molding-surface of the templet; but with obvious changes it can be readily" made to support the anchorbolt at any desired angle to said surface.

' its'outer end than at its inner end, in order to leave a free space, 12, m the concrete base.

or block, 6, surrounding theouter portion -of the shank'oi' the anchor-bolt to provide for any slight deflection of the bolt necessary to enable it to be properly connected with whatever structure is to be mounted upon the base or block, 6. The conical form of support shown, is well adapted for accomplishing the various objects above referred to. V I

By the term templet, I means to include '7 any member ofthe concrete form which forms upon the concrete base or block, a

' molded surface upon which the; block-supported structure is mounted.

For certain purposes it is characteristic of my invention that my anchor-bolt support is a support for a bolt whichis to be rigidly embedded in the concrete structure,

and it does not form a socket toreceive an anchorbolt-head as has been heretofore suggested.

- 7 What I claim as new and desire to secure by Letters Patent is 1. An anchor-bolt-suppo-rt larger at one end than at theother and provided with" a boltaperture extending entirely therethrough the smaller end of said support having portions adapted to fit and laterally support the shank ofan anchor bolt at a substantial distance from the head thereof, and the larger end of the support having means whereby it can be mounted upon the template of a concrete-form whereby the 1 headed end of said anchor-bolt is embedded ifn the body of concrete molded'within said orm.

2. An anchor-bolt-support in the form of a hollow truncated cone, the smaller end of which is slit whereby it is adapted to receive and laterally support shanks of anchor-bolts of difierent diameters, and the larger end of which hasmeans whereby it canbe attached to the templet of a concrete-form 3. An anchor-bolt-support 'madeof sheetmetal in the form of a truncated cone, the

smallerend of, which is slit whereby it is adapted to engage and laterally support shanks of anchor-bolts of different diameters, and having on itslarger endjintegral offset ears whereby it is' adapted to beattached to a concrete-form. I

In testnnony whereof, I have hereunto set my hand this 23rd day of February, 1918.

rLoss 'A. KEITH. 

